Storage-battery locomotive



W. W. SLO

ANE.

Patented Feb. 24, 1920.

w. -w. sL0ANE. STORAGE BATTERY LOCOMOTIVE. APPLICATION FILED MAY28,1917.

1,331,591 Patented Feb. 24, 1920.

W. W. SLOANE.

STORAGE BATTERY LOCOMOTIVE.

APPLICATION FILED MAY 2a, 1917.

1 33 1 ,5 9 1 Patented Feb. 24, 1920.

3 SHEETS-SHEET 3.

, said pivot `llllED STATES PATENT OFFICE.

WILLIAM W. SLOANE, OF CHICAGO, ILLINOIS, ASSIGrNOR TO GOODMAN MANUFAC-TURIN Gr COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STORAGE-BATTERY LOCOMOTIVE.

Application filed May 28, 1917.

To all lwhom t may concern:

Be it known that I, )VILLIAM W. SLoAnn, a citizen of the United States,residing at Chicago, in the county of Cook and State of lllinois, haveinvented a certain new and useful Improvement in Storage-BatteryLccomotives, of which .the 'following is a specification.

rlhis invention relates to storage battery locomotives particularlyadapted for use in mines and has among other objects to provide alocomotive of this description which readily adapts itself to uneventrack surfaces.

llhe invention is illustrated in the accom-v panying drawings, wherein-Figure 1 is a side elevation of one Jrorm of locomotive embodying theinvention;

Fig. 2 is a detailed view in Ypart `section of the connecting piecebetween the wlheel axles and the frame of the machine;

Fig. 3 is a sectional view taken on the liuc 3 3 of Fig. 2;

Fig. 4 is an enlarged side view of the connection between the wheelaxles and the frame of the machine. Y

Fig. is a plan view with parts omitted, showing the pivot connecting thesections together.

Fig. 6 is a vertical sectional view through taken as indicated on line 66 of Fig. i

Like parts refer to like numerals througlr out `the several figures.

ln the construction illustrated lthe locomotive is 'made up of threesections 1, 2 and The end section 1 is provided with drv ing wheels 1and undriven wheels 5, the driving whe-els being driven by the motor 6.The en'd section 3 is provided with driving wheels 7 and undriven wheels8, the `driving wheels being driven by the motor 9.

In the construction shown, the driving wheels arelarger than theundriven'wheels and the iin-driven wheels of both end sectionsprojectunder the central `section 2. This central section 2 carries the storagebattery 10 from which the current is derived to operate the motors 6 andY'9. .The draw bars 3 lit will be V'noted are directly clonnected to theend sections 1 and 3 and not tothe section 2. The three .sections,r1, 2and 3 are pivotally connected together 'by means of substantially.vertical pivots so that they Specification of Letters Patent.

Patented Feb. 24., 1920.

Serial No. 171,348.

move relatively in a substantially horizontal .plane to facilitate theirpassing around a curve, but they are substantially rigidly conneet-ed sofar as relative vertical movement among them in a vertical plane isconcerned so that Vthe strains when one of the draw bars 8a is connectedto the load to be pulled are transmitted from either end section throughthe central section to the other end section. This vertical rigidity,however, tends to cause some of the wheels to be lifted from the trackwhere the track is undulating, that is, where there are hills along thetrack. In the present case l provide means for obviating thisdiiiiculty. It will be noted that the axles 11 and 12 are connected withthe partsl and 11, said parts being movably connected with the frame 15of the part l thereby having a slidable connection. The axles 16 and 1 7of section 3 are connected to the parts 18 and 19 which are movablyconnected with the frame 20 of section 3. A connecting piece 21 (seeFigs. 1, 2 and 4) is provided with the' engaging pieces 22 and 23 whichengage or rest upon the parts 13 and 14 or some part connected with theaxles 11 and 12. An elastic connecting device such as the spring 24 isinterposed between the connecting piece 21 and the .frame 15 of section1 or some part connected therewith. In the construction illustratedthere is a cross piece 25 (see Fig. 2) which extends from one side ofsection 1 to the other side thereof .to hold the side pieces togetherand the spring 24e engages this cross piece and the connecting piece 21,(see Fig. 3). The cross piece is provided with lthe projections 26 whichfit in the hollow end of the spring to hold it against lateral movementand the connecting piece is provided with similar projections 27 whichproject into the hollow at the other end of the spring. By having aplurality of these projecting pieces the spring may be located atdifferent .points between the axles so as to regulate or vary the weightor pressure on the driving wheels. It will thus be seen that the weighton the wheels 1 and 5 is transmitted through vthe spring 24e andconnecting piece 21 and that this connecting piece permits the wheels tomove so as to adjust themselves to the undulations of the track, thewheels being thereby kept upon the track. A similar con-- neet-ingpiece21a, which has the engaging claims hereof.

pieces Q2 and 23 andwhich is connected by the spring Q4 vvith a crosspiece similar to the cross piece 25 extends across section 3 and isirovided with the projections 26a, the connecting piece 2l having theprojections QW. The pivotal connection between the tivo end sections andthe central section is the same in each case, and in Figs. 5 and G lhave illustrated one -form 0f this pivotal connection. in thisconstruction the iframe piece 28 is provided With a projecting pivot 29,preferably integral therewith. This pivot is also preferably hollow. Thepivot 29 projects into a receiving part 30 fastened this pivot, Which issubstantially vertical,

engages the part into which it is-received so kas to prevent verticalangular relative-move ment between thesections. W hen l use this :termof expressionof vvertical angular rela-.

tive movement between the sections, I use it as meaningorganiZedi-elative .vertical an-y gulaiinoveinent and not to exclude.any small amountoi relative 'movement due to the Wearing ofthe parts cithe clearances required for assembling the parts and for the operationthereof. The otherside ofthe locomotive is provided with connectingpiecesl similar to 21 and 21 and associated parts.

lt will thus be seen that by means o' this consti-notion the verticalrigidity required to properly transmit the stresses' from one endsection through the central section to thev oth-erelid section ismaintained and. at thesame time the Wheels automatically adjustthemselves to undulations and irregularities inthe track so as to bemaintained Vupon the track at all times.

I have described in detail particular construction embodying theinvention, but it .is of course evident that the parts may he varied inmany particulars Without departing from the invention herein shown anddescribed and speciiically pointed out in the Vlrlhe use and operationot my invention are as follows:

' When the locomotive is being used to pull 1 a train of cars thedravvbar 3a is connected with the car or cars to be drawn. Now it willbe noted that as the locomotive moves along the track there is a pull onthis draw bar, and since the draw bar, is connected directly to theend', section containing the Wheels, the point Where this pull isapplied to the locomotive, is necessarily above the top yof the railupon Whichthe Wheels rest, and it will be seen that this pull tends torevolve the Whole-locomotive around the point ot contact between therearmost Wheel and the track and if said rearmost Wheel is the wheel 7,this point would be theV point 7 a. Norvif the section 3 is connectedtothe eentral section 2 by a rconnection which permits vertical movementin this line of pull, it will be seen that the pressure of the un?driven Wheels, as for example, the wheels 8 upon the track, vvillbereduced and mighthe entirely raised from the track. By means et therigid ,connection betvveen'the sections l, 2 and '3 which preventsvertical. relative movement between the several sections along this lineot pull, it will be seen that in order yto lii't the undriven Wheels`trom the tracker reduce their pressure on the track, it Will be.necessary to lift the entire locomotive beyond the point 7a, that is,revolve the entire locomotive about the point Ta. Since.l

'fhovveven the vertical leverparm, by means of which the pull on thedraw bar 3a. acts to produce this movement, is shorter than thehorizontal lever larm from the point Ta to the center of gravity of theremaining` portion of vthe locomotive, it Will be seen that thisrigidity against vertical relative nieve- .inent between the sectionsWill thus completely prevent the undriven wheels from being lifted` fromthe tracker have their pressure vupon the track reduced in 'anysufficient Vamount to interfere ivith the 'operation ot' the locomotive.Y

It will further be noted, however, that this rigidity against verticalrelative moi-.fement between the sections along this line of pull brings.in another factor which must be taken care of, and that is, that thereare vertical irregularities'in the track, this rigidity tends to preventthe wheels from freely following these .vertical jrregularitie 1and'hence some of the Wheels areliable at some Vtimes to be off-track`and cause derailment of the locomotive, and it these vvheelshappen tobethe driving Wheels, to interfere ivith the development of the maximumdraw `bar pull. In the present eevice this difficulty is `obviated bymeans' of the connecting pieces 2l and 21a lextending be` tween the tWoWheels at each side ot the end sections, for since each connectingpieceis coimectedatits ends with the supports ot the Wheels betvveen which itextends Vand there is an elastic connection betweenY each connectingpiece, and the end section with VWhich lit is associated, it will beseen that the Wheels areV free to move relatively with relation tothesection to which they are connected so that they can freely follow thevertical irregularities in the track Without their being in interferencewhatever with the vertical rigidity against relative vertical movementbetween the several sections along the line of pull. y

1 claim:-

1. A mining locomotive comprising a central section, two end sectionspivotally connected to said Acentral section, means for maintaining anangular rigidity between said sections in all vertical planes, each endsection provided with four wheels two at each side thereof, a draw barconnected with one of said wheeled sections for connecting thelocomotive with its load, wheel supports with which said wheels areconnected, connecting pieces extending between the two whe-els at eachside of the end sections, each connecting piece connected at its endswith the supports of the wheels between which it extends and an elasticconnection between each of said connecting pieces and the end sectionwith which it is associated.

2. A mining locomotive comprising a central section, two end sectionspivotally connected to said central section, each end sec tion providedwith four wheels two at each side thereof, wheel supports with whichsaid wheels are connected, connecting pieces extending between the twowheels at each side of the end sections, each connecting piece connectedat its ends with the supports of the wheels between which it extends andan elastic connection between each of said connecting pieces and the endsection with which it is associated, and-means for varying the positionof said elastic connection so as to vary relatively the weight on thetwo wheels with which it is associated.

3. A mining locomotive comprising two sections pivotally connectedtogether, two pairs of wheels on one of said sections, one pair at eachside thereof, a draw ba-r connected with one of said wheeled sectionsfor connecting the locomotive with its load, snpports for said wheelsmovably connected with the section with whichV the wheels areassociated, connecting pieces connecting the supports of the two wheelsat each side of said section and a spring connecting each connectingpiece with said section.

4f. A mining locomotive comprising two sections pivotally connectedtogether, two pairs of wheels on one of said sections, one at each sidethereof, supports for said wheels movably connected with the sectionwith which the wheels are associated, connecting pieces connecting thesupports of the two wheels at each side of said section and a springconnecting each connecting piece with said section and means for varyingrelatively the weight on said wheels.

5, A 'mining locomotive comprising two sections pivotally connectedtogether, a. pair of wheels at each side of one of said sections, a drawbar connected with said wheeled `sec- A'nected with said section, .aconnecting piece extending between each pair of wheels and connectedwith the supports thereof, the

middle portion of said connecting `piece being depressed and a springconnecting the depressed portion of each connecting piece with thesection whereby the weight is transmitted to the wheels through saidsprings and connecting pieces.

(i. A mining locomotive comprising a central section and two endsections pivotally connected together so that each end section has anangular motion aroimd a vertical axis with relation to the centralsection for limiting relative angular motion around a horizontalaxis'between each section and the central section, four wheels connectedwith each end section, two wheels at each side thereof, a draw barconnected with one of said wheeled sections for connecting thelocomotive with its load, supports for said wheels, a connectionextending between the two wheels at each side and connected with thewheel supports and an elastic connection between each of said connectingpieces and the section with which it is associated whereby the wheelsautomatically adjust themselves to irregularities in the track.

7. A mining locomotive comprising a central section and two endsections, a substantially vertical pivot connecting each end sectionwith the central section, receiving parts into which said pivots arereceived and in which they move to permit horizontal relative angularmovement between the sections, said pivots engaging the receiving partsinto which they are received so as to prevent relative angular verticalmovement between said sections, each end section being provided withfour wheels, two at each side thereof, a draw bar connected with one ofsaid wheeled sections for connecting the locomotive with its load, wheelsupports with which said wheels are connected, connecting piecesextending between the two wheels at each side of each end section, eachconnecting piece connected at its end with the supports of the wheelsbetween which it extends and an elastic connection between each of saidconnecting pieces and the end section with which it is associated.

8. A mining locomotive comprising two sections, a substantially verticalpivot connecting the two sections, a receiving part into which saidpivot is received, and in which it moves to permit horizontal relativeangular movement between the sections, said pivot engaging the receivingpart into which it is received so as to prevent relative angularvertical movement between said sec tions, two pairs of wheels on each ofsaid sections, one pair at each side thereof, a draw bar connected withone of said Wheeled sections 'for connecting the 1ooo1n0- In testimonywhereof I aX my signature, tive With its load, supports for said Wheelsin the, presence of tWo Witnesses, this 7th movably connected With thesaid sections, a, dayrof May, 1917. l connecting piece at each side ofsaid section WILLIAM W. SLOANE. Connecting the supports of the twoWheels Witnesses: o v

at each side thereof and a spring connecting .MARIoN INGRAHAM, l

each connecting piece with said section. 'LYDIA M..SYLVANUS.

